package com.houtai.eduservice.controller;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.houtai.commonutils.Result;
import com.houtai.eduservice.config.OperationLogDesc;
import com.houtai.eduservice.entity.EduTeacher;
import com.houtai.eduservice.entity.vo.TeacherQuery;
import com.houtai.eduservice.service.EduTeacherService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.validation.Valid;
import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author lin
 * @since 2022-11-07
 */
@Api(description = "讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
//@CrossOrigin
public class EduTeacherController {
    //把service注入
    @Autowired
    private EduTeacherService eduTeacherService;
    //1.查询讲师表的所有数据(get)
    //rest风格
    @ApiOperation(value = "所有讲师列表")
    @GetMapping("/findAll")
    public Result findAllTeacher(){
        //调用service中的方法实现查询所有的数据
        List<EduTeacher> list=eduTeacherService.list(null);
        return Result.ok().data("itms",list);

    }
    //2.逻辑删除讲师(通过路径传入id)
    @ApiOperation(value = "逻辑删除讲师")
    @OperationLogDesc(module = "讲师模块",description = "删除讲师")
    @DeleteMapping("{id}")
    public Result removeTeacher(@ApiParam(name="id",value = "讲师ID",required = true) @PathVariable int id){
        boolean flag=eduTeacherService.removeById(id);
        if(flag){
            return Result.ok();
        }
        else {
            return Result.error();
        }

    }
    //3.分页查询讲师的方法
    @ApiOperation(value = "分页查询讲师")
    @GetMapping("pageTeacher/{current}/{limit}")
    public Result pageListTeacher(@PathVariable long current,
                             @PathVariable long limit) {
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);
//        try{
//            int i = 10/0;
//        }
//        catch (Exception e){
//            //执行了自定义异常处理
//            throw new DException(500,"执行了自定义异常处理");
//        }

        //int i = 10/0;

        //调用方法实现分页
        //调用方法时候，底层封装，把分页所有数据封装到pageTeacher对象里面
        eduTeacherService.page(pageTeacher,null);

        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords(); //数据list集合

//        Map map = new HashMap();
//        map.put("total",total);
//        map.put("rows",records);
//        return R.ok().data(map);

        return Result.ok().data("total",total).data("rows",records);
    }
    //4.多条件组合查询带分页
    @ApiOperation(value = "多条件组合查询带分页")
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    @OperationLogDesc(module = "讲师模块",description = "查询讲师列表")
    public Result pageTeacherCondition(@PathVariable long current,
                                       @PathVariable long limit,
                                       @RequestBody(required = false) TeacherQuery teacherQuery){
        //创建page对象
        Page<EduTeacher> pageT = new Page<>(current,limit);
        //调用方法实现分页
        //构建条件
        QueryWrapper<EduTeacher> wrapper=new QueryWrapper<>();
        //wrapper
        //动态sql
        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        //判断条件值是否为空，如果不为空拼接条件
        if(!StringUtils.isEmpty(name)){
            //构建条件
            wrapper.like("name",name);

        }
        if(!StringUtils.isEmpty(level)){
            //构建条件
            wrapper.eq("level",level);

        }
        if(!StringUtils.isEmpty(begin)){
            //构建条件
            wrapper.gt("gmt_create",begin);

        }
        if(!StringUtils.isEmpty(end)){
            //构建条件
            wrapper.le("gmt_create",end);

        }
        //排序
        wrapper.orderByDesc("gmt_create");

        //调用方法时候，底层封装，把分页所有数据封装到pageTeacher对象里面
        eduTeacherService.page(pageT,wrapper);

        long total = pageT.getTotal();//总记录数
        List<EduTeacher> records = pageT.getRecords(); //数据list集合
        return Result.ok().data("total",total).data("rows",records);

    }
    //5.添加讲师
    @ApiOperation(value = "添加讲师")
    @PostMapping("addTeacher")
    @OperationLogDesc(module = "讲师模块",description = "添加讲师")
    public Result addTeacher(@RequestBody @Valid EduTeacher eduTeacher){
        boolean flag=eduTeacherService.save(eduTeacher);
        if(flag){
            return Result.ok();
        }
        else {
            return Result.error();
        }
    }
    //6.根据讲师id进行查询
    @ApiOperation(value = "根据讲师id进行查询")
    @GetMapping("getTeacherId/{id}")
    public Result getTeacherId(@PathVariable Integer id){
        EduTeacher eduTeacher=eduTeacherService.getById(id);
        return Result.ok().data("teacher",eduTeacher);

    }
    //7.修改讲师
    @ApiOperation(value = "修改讲师")
    @OperationLogDesc(module = "讲师模块",description = "修改讲师")
    @PostMapping("updateTeacher")
    public Result updateTeacher(@RequestBody EduTeacher eduTeacher){
        boolean f=eduTeacherService.updateById(eduTeacher);
        if(f){
            return Result.ok();
        }
        else {
            return Result.error();
        }

    }

}

